Sentences with phrase «trends by calculation»

You need to consider establishing trends by calculation rather than by your magical calculating eyes.

Not exact matches

«If not for the less stringent AYP calculation for charter schools used by PDE for 2011 - 12, that trend would continue this year as well.»

In today's market, it could take a family earning the national median income up to 20 years to save 20 percent, according to calculations by U.S. Mortgage Insurers using a methodology developed by the Center for Responsible Lending; a lot can change during that time, in the family's personal finances and in overall mortgage market trends.

The probability calculation Almuth proposes is tailor made for influencing the public towards «greater» action, while a calculation that looked at say the impact of Kyoto in 2020 on the wind speed of a second Katrina, compared that to the variability introduced by natural cycles and emphasised that this was based on models, while there had been no conclusive trend in tropical cyclone wind speeds so far, would be made with a different kind of advocacy in mind (Pielke et al's paper is very clearly going in this direction).

«Because July 2010 is by far the hottest on record, including it in the trend and variance calculation could arguably introduce an element of confirmation bias.

I guess the question in this case (referring to comment # 33 regarding whether there really has been a trend and the reference to Michaels and hurricane loss) boils down to weighing the normalisation of hurricane loss (used to adjust the trends in total hurricane loss) against the calculations by Emanuel as well as the degree of representativeness in this case.

On re-painting, the error is rectified, but by regarding the repainted station as a new station the system then incorporates the invalid trend into its calculations.

During informal consultations, CLAs did calculations in response to the suggestion by the US, and a related footnote was subsequently approved by the WG noting that «trends for 15 - year periods starting in 1995, 1996 and 1997 are 0.13 (uncertainty interval: 0.02 to 0.24), 0.14 (0.03 to 0.24), and 0.07 -LRB--0.02 to 0.18) ºC per decade, respectively.»

Benestad also noted a post from climate blogger Tim Lambert, who pointed out an error in the calculation of area weighting (a mixup of radians and degrees) that almost doubled the portion of warming trend attributed by McKitrick to economic factors, despite McKitrick's claim that the correction «hardly changed the results» (hat tip to Frank O'Dwyer).

By the way, I should point out what lolwot admitted to doing wrong wasn't trend calculations.

We need to be careful focussing upon «trends» — it can lead to serious errors of context — and this underlies the entire «global warming» thesis which relies upon computer models with entirely false (i.e. non-natural) notions of an equilibrium starting point and calculations of trend — this conveniently ignores cycles, and it has to because a) there are several non-orbital cycles in motion (8 - 10 yr, 11, 22, 60, 70, 80, 400 and 1000 - 1500) depending on ocean basic, hemisphere and global view — all interacting via «teleconnection» of those ocean basins, some clearly timed by solar cycles, some peaking together; b) because the cycles are not exact, you can not tell in any one decade where you are in the longer cycles.

For this calculation, we scale the observed interannual SLP, SAT and P regression values by the factor 1.53 appropriate for a 30 - year trend and an observed NAO autocorrelation of 0.17 based on detrended data during 1920 — 2012 (Fig.

You probably need to do some sort of Monte Carlo calculation to see how much you improve you estimate of the long - term trend by subtracting estimated noise.

By the way, I do not see why one would want to limit ones calculations in analyzing temperature trends.

Our calculations of the statistical significance of least - squares linear trends in timeseries are based on the two - sided t - test methodology and adjustment for autocorrelation reviewed and outlined by Santer et al. (2000).

Temporal trends will exist in those temporal series, meaning their spatial correlation calculations are impacted by temporal trends.

if the time series was expanded by splitting it down the middle and placing a 500 year manufactured data set in the middle with 1910 to 1960 data being the first 50 years and 1960 to 2010 the last 50 years, with the infilled data averaging the mean of the current trend, would the resultant trend begin and end at the same levels after the homogenization, tobs and pha calculations?

The cooling trend is a short term calculation and influenced by both natural and human caused forcings.

Although the calculations of 18 - year rates of GMSL rise based on the different reconstruction methods disagree by as much as 2 mm mm yr - 1 before 1950 and on details of the variability (Figure 3.14), all do indicate 18 - year trends that were significantly higher than the 20th century average at certain times (1920 — 1950, 1990 — present) and lower at other periods (1910 — 1920, 1955 — 1980), likely related to multidecadal variability.The IPCC AR5 found that it is likely that a sea level rise rate comparable to that since 1993 occurred between 1920 and 1950.

As for the SAT trend, we also performed the same calculations after removing the natural variability using a method proposed by Thompson et al. 2008, but the difference between with and without removing natural variability is very small (not shown).

Estimates are shifted to align for 2006 — 2010, five years that are well measured by Argo, and then plotted relative to the resulting mean of all curves for 1971, the starting year for trend calculations.